[gnome-shell] calendar: Fix number formatting in some languages

[Bastien Nocera <hadess src gnome org>]

commit 3e602b1765a281fdd8c4a81b4727b9d77e770695
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Aug 25 12:11:20 2015 +0200

    calendar: Fix number formatting in some languages
    
    Some languages require using a conversion modifier to display the day
    number in a translated shape. fa_IR is affected for example.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=673235

 js/ui/calendar.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/calendar.js b/js/ui/calendar.js
index 056d6e2..c6fccbf 100644
--- a/js/ui/calendar.js
+++ b/js/ui/calendar.js
@@ -725,7 +725,7 @@ const Calendar = new Lang.Class({
         // nRows here means 6 weeks + one header + one navbar
         let nRows = 8;
         while (row < 8) {
-            let button = new St.Button({ label: iter.getDate().toString(),
+            let button = new St.Button({ label: iter.toLocaleFormat(C_("date day number format", "%d")),
                                          can_focus: true });
             let rtl = button.get_text_direction() == Clutter.TextDirection.RTL;